Measures of Center and Measures of Variation

Which measure might be misleading in describing the value of each item?

• The mode, because it is significantly higher than the average.

• The mean, which gives an average value for the items.

• The mean, because of the outlier.

• The mode, because it is lower than the average.

Which statement is true?

• The mode is misleading because it is in the center of the data points.

• The mean is misleading because the outlier skews the mean down.

• The median is misleading because it is in the center of the data.

• The range is misleading because it is too large.

Which measure of center most accurately describes the data?

• Mean

• Median

• Mode

• Range

The __________ is the middle number, or the mean of the two middle numbers, of the ordered data in a set.

• mean

• range

• median

• mean absolute deviation

The __________ of the data set is the sum of the data divided by the number of pieces of data.

• third quartile

• mean

• measures of center

• mode

The __________ is the number or numbers that occur most frequently in a data set.

• average

• mode

• quartiles

• mean

Numbers called __________ can be used to describe the center of data.

• measures of center

• quartiles

• outliers

• range

The __________ is the median of the upper half of the set of data.

• mode

• average

• outliers

• third quartile

__________ is a common term used to refer to the measure of central tendency otherwise known as the mean.

• measures of center

• mean absolute deviation

• quartiles

• average

The _________ is the median of the lower half of the set of data.

• median

• mean

• first quartile

• mode